CFD tab in model data
This tab allows you set various types of boundary condition for CFD calculations.
If you have previously loaded simulation results as boundary conditions using the CFD Boundary Conditions Edit dialog then this data will be displayed at surface and opening levels.
The attributes that can be set on this tab are shown with the boundary condition type to which they apply. Note that all attributes are displayed at zone level and above in the hierarchy because these act as defaults, but at surface and opening level only the data applicable to the current object is displayed.
Note: Data specified on this tab does not affect EnergyPlus simulations.
Applies to: All Internal surfaces and all internal openings
This setting provides a default inside surface temperature (in °C or °F) for internal surfaces (partitions, internal floors and ceilings) as well as all internal openings. It can be set for all levels in the model hierarchy from building level down.
This value is also used for virtual partitions to represent the average temperature of the surfaces in the adjacent room.
Important Note: Zero thickness internal partitions and floors/ceilings separating two zones in a block or building level CFD simulation are ignored, and in this case the domain will be seen as a single contiguous space. This boundary condition setting therefore has no effect on the simulation in this case.
Applies to: All external surfaces and external doors and sub-surfaces
This setting provides a default inside surface temperature (in °C or °F) for all external opaque surfaces and openings, including walls, roofs, external floors etc as well as external doors and sub-surfaces. It can be set for all levels in the model hierarchy from building level down.
It does not include external windows though, which are included in the item below.
Applies to: External windows
This setting defines the inside surface temperature for external windows (in °C or °F). It can be set for all levels in the model hierarchy from building level down.
Applies to: Windows, Vents, Doors and Holes
Temperature of air entering the space through windows, vents, doors and holes (in °C or °F).
Applies to: Supply diffusers
Temperature of air entering the space through Supply diffusers (in °C or °F).
Data on this tab is also used for entering boundary conditions for component blocks, assemblies and for boundary condition patches drawn onto zone or component block surfaces. For details see:
See also: